 Continuing Work on My 914 EZ30R Twin Turbo Conversion, 1/31/12, nothing new just started working on the car again pic will follow |
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| Andyrew |
 Jun 22 2010, 12:03 AM
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#101
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Spooling.... Please wait  Group: Members Posts: 13,377 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California 
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Wowzers!! Awesome progress!!!!!
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| charliew |
Jun 22 2010, 07:28 AM
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#102
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Advanced Member Group: Members Posts: 2,363 Joined: 31-July 07 From: Crawford, TX. Member No.: 7,958 |
Nice fitting on the exhaust. I might be wrong but I'm pretty sure as the tubing heats and cools it is going to move alot. If it's ss it will move more than mild steel. The holes in the rear panel will need to be a lot bigger at the least. I guess if the tubing cracks or a housing cracks you can worry about it then. It really looks smooth though and maybe it will never be a problem. Maybe the holes in the panel will hold the tubing and it will take a set from the heat and sorta stay in the right place. It will be interesting to see the outcome.
Have you got a solution for the heat on the bottom side of the trunk lid? Louvers might be neat. |
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| TwinTurbo914 |
Jun 22 2010, 10:04 AM
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#103
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Member Group: Members Posts: 73 Joined: 29-May 03 From: NorCal Member No.: 752 Region Association: Northern California |
QUOTE(charliew @ Jun 22 2010, 05:28 AM)  Nice fitting on the exhaust. I might be wrong but I'm pretty sure as the tubing heats and cools it is going to move alot. If it's ss it will move more than mild steel. The holes in the rear panel will need to be a lot bigger at the least. I guess if the tubing cracks or a housing cracks you can worry about it then. It really looks smooth though and maybe it will never be a problem. Maybe the holes in the panel will hold the tubing and it will take a set from the heat and sorta stay in the right place. It will be interesting to see the outcome. Have you got a solution for the heat on the bottom side of the trunk lid? Louvers might be neat. The stainless isn't as prone to crack as much as the mild steel, but the holes in the rear panel were mainly to help set a target point to route the tubes thru, i'm going to cut it out and probably make a stainless panel with some sort of support. And on the trunk lid I was planning on louvers to help with the heat build-up also, maybe i will wrap the the tubing also, but thats after I get it all running. Next im going to final fit everything, and tig the headers and all the turbo piping. Then I might start on my custom intake manifold, but not sure yet. I also Had the car at our open house car show this weekend at my Shop, We had a great turn out also, about 140 cars turned out. But everyone now officially thinks I'm insane with this project. LOL |
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| Zardozz |
Jun 22 2010, 10:30 AM
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#104
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Member Group: Members Posts: 107 Joined: 31-March 08 From: Orange County, CA Member No.: 8,874 Region Association: None |
That is the sickest set up I've ever seen...
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| wittmer25 |
Jun 22 2010, 02:16 PM
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#105
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Newbie Group: Members Posts: 6 Joined: 22-June 10 From: waco, tx Member No.: 11,866 Region Association: None |
This is the perfect build! I love this. I wish my dad would follow your footsteps with his 914 project (it will probably rust away until he gets tired of looking at it and wants me to take over the build).
One question, why restrict the exhaust at the merge? You have two 3" pipes that merge together, neck down, and then split again to 3" dual tips. Seems like you need the merge before the turbos to equalize exhaust pressure on each turbine, then keep it a true dual exhaust without a merge after the turbo. Wouldn't this create less exhaust restriction? Just curious why you chose to do it this way? Edit: FYI: Mild steel has a much lower coefficient of thermal expansion than austentic stainless steel (300 series stainless) which means it will move more (about 30-40% more). Also, its important to use a low carbon filler material to prevent hydrogen embrittlement around the heat affected zone. This will help prevent cracking around your welds when stressed due to thermal expansion. |
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| Cupomeat |
Jun 22 2010, 02:19 PM
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#106
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missing my NY 914 in VA Group: Members Posts: 1,338 Joined: 26-November 07 From: Oakton VA Member No.: 8,376 Region Association: MidAtlantic Region |
Just my $0.02, but a true dual exhaust is annoying to listen to.
This will be a much sweeter sounding exhaust. |
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| TwinTurbo914 |
Jun 22 2010, 02:31 PM
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#107
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Member Group: Members Posts: 73 Joined: 29-May 03 From: NorCal Member No.: 752 Region Association: Northern California |
QUOTE(Cupomeat @ Jun 22 2010, 12:19 PM) Just my $0.02, but a true dual exhaust is annoying to listen to. This will be a much sweeter sounding exhaust. I love the sound an X-pipe gives ( plus it just look cool), and they are also supposed to help scavenge the exhaust, plus with running two 3" outlets out of the turbo, there not going to be much of a restriction. I'm glad everyone appreciates the project, it has been a lot of work, but in the end it will definitely be worth it |
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| wittmer25 |
Jun 22 2010, 02:32 PM
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#108
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Newbie Group: Members Posts: 6 Joined: 22-June 10 From: waco, tx Member No.: 11,866 Region Association: None |
QUOTE(Cupomeat @ Jun 22 2010, 12:19 PM) Just my $0.02, but a true dual exhaust is annoying to listen to. This will be a much sweeter sounding exhaust. I agree about the sound of a single exhaust vs. dual. |
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| TwinTurbo914 |
Jun 22 2010, 02:35 PM
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#109
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Member Group: Members Posts: 73 Joined: 29-May 03 From: NorCal Member No.: 752 Region Association: Northern California |
[/quote]Edit: FYI: Mild steel has a much lower coefficient of thermal expansion than austentic stainless steel (300 series stainless) which means it will move more (about 30-40% more). Also, its important to use a low carbon filler material to prevent hydrogen embrittlement around the heat affected zone. This will help prevent cracking around your welds when stressed due to thermal expansion.
[/quote] That is why I'm using 308 rod which is specifically made for 304 tube, and thats what everyone used for welding up headers. |
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| wittmer25 |
Jun 22 2010, 02:36 PM
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#110
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Newbie Group: Members Posts: 6 Joined: 22-June 10 From: waco, tx Member No.: 11,866 Region Association: None |
QUOTE(TwinTurbo914 @ Jun 22 2010, 12:31 PM) QUOTE(Cupomeat @ Jun 22 2010, 12:19 PM) Just my $0.02, but a true dual exhaust is annoying to listen to. This will be a much sweeter sounding exhaust. I love the sound an X-pipe gives ( plus it just look cool), and they are also supposed to help scavenge the exhaust, plus with running two 3" outlets out of the turbo, there not going to be much of a restriction. I'm glad everyone appreciates the project, it has been a lot of work, but in the end it will definitely be worth it I just wanted to bring up the possibility of a restriction in the exhaust if you were going to go balls out with your turbos (max airflow, 600-800hp). Keep the pictures coming. This is an awesome project! I hope your tranny holds up. Hopefully the tires will spin before axles break (IMG:style_emoticons/default/wink.gif) |
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| wittmer25 |
Jun 22 2010, 02:40 PM
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#111
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Newbie Group: Members Posts: 6 Joined: 22-June 10 From: waco, tx Member No.: 11,866 Region Association: None |
[quote name='TwinTurbo914' date='Jun 22 2010, 12:35 PM' post='1333819']
[/quote]Edit: FYI: Mild steel has a much lower coefficient of thermal expansion than austentic stainless steel (300 series stainless) which means it will move more (about 30-40% more). Also, its important to use a low carbon filler material to prevent hydrogen embrittlement around the heat affected zone. This will help prevent cracking around your welds when stressed due to thermal expansion. [/quote] That is why I'm using 308 rod which is specifically made for 304 tube, and thats what everyone used for welding up headers. [/quote] 308L is best for 304. The L stands for low carbon. Its what we use to weld up our stainless components at work. We use 304 and 201LN sheet. |
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| TwinTurbo914 |
Jun 22 2010, 02:43 PM
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#112
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Member Group: Members Posts: 73 Joined: 29-May 03 From: NorCal Member No.: 752 Region Association: Northern California |
Im going to have custom axles made, the vw/porsche hybrid axles I Know wont hold up. And for the transaxle im going with the MRT Unbreakable gear set, they will replace the gear set for free if you can break them. And they come in standard synchro, semi dog ring and full dog ring setup-ups. It might be fun to get a full dog ring setup and run a mastershift paddle shift assembly with the cable shifter assembly, for paddle shifted clutchless fun (IMG:style_emoticons/default/biggrin.gif)
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| DBCooper |
Jun 22 2010, 02:58 PM
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#113
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14's in the 13's with ATTITUDE Group: Members Posts: 3,079 Joined: 25-August 04 From: Dazed and Confused Member No.: 2,618 Region Association: Northern California |
Dude, they're right, you ARE crazy! And that's a serious compliment.
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| wittmer25 |
Jun 22 2010, 04:06 PM
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#114
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Newbie Group: Members Posts: 6 Joined: 22-June 10 From: waco, tx Member No.: 11,866 Region Association: None |
Can't wait for the next pic's!
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| fat73 |
Jun 22 2010, 08:45 PM
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#115
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W9R1 Group: Members Posts: 244 Joined: 7-May 05 From: tampa,fl Member No.: 4,043 Region Association: South East States |
Can't wait to hear it run...
Ed |
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| TwinTurbo914 |
Jan 31 2012, 08:07 PM
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#116
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Member Group: Members Posts: 73 Joined: 29-May 03 From: NorCal Member No.: 752 Region Association: Northern California |
Well it has been far to long since I have updated this but, to be honest there hasn't been much going on with the project as I opened up another location for my business, and have got a few new "toy" cars I have been playing with( will post some pics, and you will understand why LOL) But I am just getting started working on the car again, and will post some pics of what Im working on now.
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| Mike Bellis |
Jan 31 2012, 08:25 PM
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#117
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Resident Electrician Group: Members Posts: 8,346 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None 
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Wow! First time I read this thread. Very impressive. It motivates me to get back to mine... Soon I hope. Keep up the good work!
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| pbrocchi |
Jan 29 2013, 07:40 PM
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#118
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Newbie Group: Members Posts: 1 Joined: 29-January 13 From: Brazil Member No.: 15,448 Region Association: South America |
Hi, my name is Pedro and I'm from Brazil.
I have a 914 with an EZ30R on it. It's my track day car. Porsche 914/6 Inside Footage Porsche 914/6 Outside Footage (IMG:http://www.914world.com/bbs2/uploads_offsite/img594.imageshack.us-15448-1359510035.1.jpg) I hope you like... |
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| Mike Bellis |
Jan 29 2013, 07:47 PM
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#119
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Resident Electrician Group: Members Posts: 8,346 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None
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QUOTE(pbrocchi @ Jan 29 2013, 05:40 PM) Hi, my name is Pedro and I'm from Brazil. I have a 914 with an EZ30R on it. It's my track day car. Porsche 914/6 Inside Footage Porsche 914/6 Outside Footage (IMG:http://www.914world.com/bbs2/uploads_offsite/img594.imageshack.us-15448-1359510035.1.jpg) I hope you like... Looks like a crazy ride! looks fun too. (IMG:style_emoticons/default/welcome.png) |
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| Andyrew |
Jan 30 2013, 09:42 AM
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#120
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Spooling.... Please wait Group: Members Posts: 13,377 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California
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^^ That was an awsome dogfight between you and the GTR!
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